Finding the Fourth Proportional to 8,939,906.20, 13,409,859.30 and 3,260,315.80
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Solution
The fourth proportional to 8,939,906.20, 13,409,859.30 and 3,260,315.80 is: 4,890,473.70
Step by Step Solution
- Step 1: Write the proportion equation
8,939,906.20 : 13,409,859.30 = 3,260,315.80 : x - Step 2: Convert to fraction form
8,939,906.20/13,409,859.30 = 3,260,315.80/x - Step 3: Cross multiply
8,939,906.20x = 13,409,859.30 × 3,260,315.80 - Step 4: Simplify right side
8,939,906.20x = 43,720,376,151,566.94 - Step 5: Solve for x
x = 43,720,376,151,566.94/8,939,906.20 - Step 6: Final answer
x = 4,890,473.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.